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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Heat of fusion
Waves and particles
Decreased
Newtons first principle of Universal Gravitation

2. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Difference between the heat supplied and the heat exhausted
Means less power is transmitted
Newtons first principle of Universal Gravitation
Waste heat for secondary uses

3. Raising an auto in a service station requires work. Raising it twice as high requires...
Remains unchanged
First principle of Centripetal force
Difference between the heat supplied and the heat exhausted
Twice the work

4. Entropy refers to...
Disorder
Increases the energy
Might stay the same
Twice the work

5. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
12 miles per hour
Twice the work
Movement
Momentum

6. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Halogen radicals interfering in ozone synthesis
Difference in the sped of light in water vs. air
5 m/s
Waves and particles

7. In a generator - the flow of electrons (current) is created by...
Second principle of Centripetal force
Movement
Heat of fusion
Less on the moon

8. In burning coal - what contaminant is of major concern as a pollutant...
Twice the work
Sulfur
Halogen radicals interfering in ozone synthesis
Total internal energy of an object

9. All objects with mass are attracted to another by the gravitational force
Universal
Newtons first principle of Universal Gravitation
Might stay the same
Means less power is transmitted

10. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Remains unchanged
Heat of fusion
Third principle of Centripetal force
Means less power is transmitted

11. The reason that a spear fisherman cannot see where the fish is actually located is...
First principle of Centripetal force
Decreased
Difference in the sped of light in water vs. air
Mechanical - chemical - and radiant energy

12. Increasing the frequency of light
Less on the moon
Near a maximum
Increases the energy
Sulfur

13. From the 50's and to the 70's - the pH of rain in the northeast had..
Decreased
12 miles per hour
Difference between the heat supplied and the heat exhausted
Less on the moon

14. The theoretical production curve of oil indicates oil production is...
Decreased
263 degrees kelvin
Near a maximum
Disorder

15. The work that a heat engine is able to accomplish is ideally equivalent to the
Newtons first principle of Universal Gravitation
Difference between the heat supplied and the heat exhausted
Heat of fusion
Newtons second principle of Universal Gravitation

16. Electromagnetic radiation can be viewed as...
Waves and particles
Newtons third principle of Universal Gravitation
Might stay the same
Newtons first principle of Universal Gravitation

17. cogeneration uses...
Means less power is transmitted
Less on the moon
Newtons second principle of Universal Gravitation
Waste heat for secondary uses

18. At a given speed - the centripetal force - the smaller the circle.
5 m/s
Third principle of Centripetal force
Halogen radicals interfering in ozone synthesis
12 miles per hour

19. Circular motion requires centripetal force
First principle of Centripetal force
Universal
12 miles per hour
Difference in the sped of light in water vs. air

20. The ozone hole results from...
Disorder
Momentum
Halogen radicals interfering in ozone synthesis
5 m/s

21. If a charging elephant has kinetic energy - it must also have...
First principle of Centripetal force
Newtons third principle of Universal Gravitation
Momentum
Remains unchanged

22. Which is not one of the fundamental forces of nature...
Twice the work
Universal
Means less power is transmitted
Decreased

23. Heat is the...
Momentum
Total internal energy of an object
Third principle of Centripetal force
Disorder

24. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Total internal energy of an object
Remains unchanged
Increasing speed and constant acceleration
Mechanical - chemical - and radiant energy

25. When you add heat to a substance - its temperature...
12 miles per hour
Might stay the same
Twice the work
Momentum

26. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Difference between the heat supplied and the heat exhausted
263 degrees kelvin
Universal
Newtons third principle of Universal Gravitation

27. The gravitational force - two masses are directly proportional to the mass of each object
Waves and particles
Means less power is transmitted
Disorder
Newtons second principle of Universal Gravitation

28. A temperature of -10 degrees celsius is equivalent to...
263 degrees kelvin
First principle of Centripetal force
Remains unchanged
Second principle of Centripetal force

29. The weight of one kilogram of iron on earth is...
Twice the work
Difference in the sped of light in water vs. air
Less on the moon
Decreased

30. The larger the centripetal force - the faster an object travels in a circle of a given size
Near a maximum
Mechanical - chemical - and radiant energy
Second principle of Centripetal force
Waves and particles

31. Electrical energy can be converted to...
Momentum
Mechanical - chemical - and radiant energy
Difference in the sped of light in water vs. air
Disorder